Post

Micro hello world

Posted Updated
By Cc 2 min read

go-Micro

1 环境搭建

work version
System windows 8.1
golang go version go1.13.4 windows/amd64
micro micro version 1.18.0
Consul Consul v1.6.2
protoc libprotoc 3.10.1

安装依赖

  • micro

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      #linux 下
  export GO111MODULE=on
  export GOPROXY=https://goproxy.io
  # windows下设置如下环境变量
  setx GO111MODULE on
  setx GOPROXY https://goproxy.io

  # 使用如下指令安装
  go get -u -v github.com/micro/micro
  go get -u -v github.com/micro/go-micro
  $ micro --help;
  NAME:
     micro - A microservice runtime

  USAGE:
     micro.exe [global options] command [command options] [arguments...]

  VERSION:
     1.18.0

  • protoc protoc download

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        下载依赖
    go get -u github.com/golang/protobuf/{proto,protoc-gen-go}
    go get -u github.com/micro/protoc-gen-micro
    $ protoc  // 查看是否安装成功！
    Usage: D:\file\gopath\bin\bin\protoc.exe [OPTION] PROTO_FILES
    Parse PROTO_FILES and generate output based on the options given:
      -IPATH, --proto_path=PATH   Specify the directory in which to search for

  • consul consul download

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        $ consul --help;
    Usage: consul [--version] [--help] <command> [<args>]
    Available commands are:

hello

  • micro new lichaocheng.top/microapp/hello

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     $ micro new lichaocheng.top/microapp/hello
 Creating service go.micro.srv.hello in D:\file\gopath\src\lichaocheng.top\microapp\hello

 .
 ├── main.go
 ├── generate.go
 ├── plugin.go
 ├── handler
 │   └── hello.go
 ├── subscriber
 │   └── hello.go
 ├── proto\hello
 │   └── hello.proto
 ├── Dockerfile
 ├── Makefile
 ├── README.md
 └── go.mod


 download protobuf for micro:

 brew install protobuf
 go get -u github.com/golang/protobuf/{proto,protoc-gen-go}
 go get -u github.com/micro/protoc-gen-micro

 compile the proto file hello.proto:

 cd D:\file\gopath\src\lichaocheng.top\microapp\hello
 protoc --proto_path=.:$GOPATH/src --go_out=. --micro_out=. proto/hello/hello.proto

  • 生成 protoc golang 和 micro golang 代码

    $ pwd /d/file/gopath/src/lichaocheng.top/microapp/hello Cc@ChaoChengLi MINGW64 /d/file/gopath/src/lichaocheng.top/microapp/hello $ protoc –proto_path=. –go_out=. –micro_out=. proto/hello/hello.proto

  • go run 运行

    $ go run main.go 2020-01-08 15:47:06.698568 I | Transport [http] Listening on [::]:7830 2020-01-08 15:47:06.698568 I | Broker [http] Connected to [::]:7831 2020-01-08 15:47:06.718288 I | Registry [mdns] Registering node: go.micro.srv.hello-114e6b46-c746-4ac4-a68c-ed1493afd1ea 2020-01-08 15:47:06.825266 I | Subscribing go.micro.srv.hello-114e6b46-c746-4ac4-a68c-ed1493afd1ea to topic: go.micro.srv.hello 2020-01-08 15:47:06.841276 I | Subscribing go.micro.srv.hello-114e6b46-c746-4ac4-a68c-ed1493afd1ea to topic: go.micro.srv.hello

  • micro api

    注意其中的–namespace 参数,我们每一个微服务都属于一个命名空间,通过 api 暴露出来该命名空间后,满足 go.micro.srv.*格式的微服务都可以访问。如 go.micro.srv.hello 可以通过如下格式访问

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    $ micro api --namespace=go.micro.srv
2020-01-08 16:02:18 [api] Registering API Default Handler at /
2020-01-08 16:02:18 [api] HTTP API Listening on [::]:8080
2020-01-08 16:02:18 [api] Starting [service] go.micro.api
2020-01-08 16:02:18 [api] Server [grpc] Listening on [::]:8026
2020-01-08 16:02:18 [api] Broker [http] Connected to [::]:8027
2020-01-08 16:02:18 [api] Registry [mdns] Registering node: go.micro.api-3ccde675-c78b-4b20-a0d8-9b2674e2f1b2

  • 测试(测试未通过)

    测试报错，待处理

Language, Go
GoWeb
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